Table 2.

Variation of calculated Aβ concentrations^a between four parallel immunoprecipitations

	Aβ38 (pg/ml)			Aβ40 (pg/ml)			Aβ42 (pg/ml)
	Mean	SD	%CV	Mean	SD	%CV	Mean	SD	%CV
Sample 1	54.08	2.38	4.40	207.22	32.06	15.47	20.38	1.45	7.12
Sample 2	54.04	3.39	6.27	216.78	26.08	12.03	23.45	1.94	8.26
Sample 3	55.44	1.19	2.15	201.50	4.50	2.23	20.12	0.43	2.12
Sample 4	46.37	2.01	4.34	162.46	8.15	5.01	18.60	1.29	6.93
Overall mean	52.48	2.24	4.29	196.99	17.70	8.69	20.64	1.28	6.11

Aβ amyloid beta, %CV coefficient of variation, SD standard deviation

^aIndicated mean concentrations refer to averaged calculated concentrations (pg/ml) in diluted immunoprecipitation eluates without correction for 10-fold dilution before measurement with the Aβ triplex immunoassay